Muslim Brotherhood Secretary General Mahmoud Hussein denounced opposition calls to shelve the new constitution, warning that such calls were illegal.

“Such talk is punishable by law because the Constitution has been approved in a fair process,” Hussein said.

In an interview on Al-Arabiya news channel Wednesday, Hussein rejected questions on the legitimacy of President Mohamed Morsy’s rule, hinting that authorities should take legal actions against those who raise them.

Hussein also claimed that Islamists staged counter demonstrations to emphasize Morsy’s majority support and popular legitimacy, accusing National Salvation Front and other opposition protesters of using violence to express their opinions.

“[It has] not proven so far that the Brothers are involved in assaulting others. On the contrary, Brothers were attacked and a number of them were killed,” Hussein claimed.